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Reverse Thermal Organogelation of Poly(ethylene glycol)-Polypeptide Diblock Copolymers in Chloroform

✍ Scribed by Yun Young Choi; Yuri Jeong; Min Kyung Joo; Byeongmoon Jeong

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
614 KB
Volume
9
Category
Article
ISSN
1616-5187

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✦ Synopsis

Abstract

Most organogel formation has been observed at low temperatures and the gel melts as the temperature increases. As an opposite case to traditional organogels, we report a reverse thermal gelation of methoxy‐aminopoly(ethylene glycol)‐homopolypeptide block‐copolymer chloroform solutions that undergo a sol‐to‐gel transition as the temperature increases. A series of methoxy‐aminopoly(ethylene glycol)‐homopolypeptide block copolymers showing reverse thermal gelation in chloroform was synthesized and we prove that the secondary structure of the polypeptide determines the morphology of the organogel.

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